3 ms·
Permanently, as in they're blowing efuses? Or just until some memory is cleared? Do you have more details on this?
by terinjokes 2y ago
Permanently, as in they're blowing efuses? Or just until some memory is cleared? Do you have more details on this?
- myself248 2y agoAs in, they don't provide a user-facing way to clear the memory. The Arbiter suffers from this: https://users.ece.cmu.edu/~dbrumley/pdf/Nighswander%20et%20al._2012_GPS%20software%20attacks.pdf https://users.ece.cmu.edu/~dbrumley/pdf/Nighswander%20et%20a... And someone went to silly lengths to fix a Furuno: https://tomverbeure.github.io/2024/08/18/Fixing-the-Symmetricom-S200-GPS-Week-Number-Rollover-Problem.html https://tomverbeure.github.io/2024/08/18/Fixing-the-Symmetri... Fun trivia, the Unix epoch rolls over in January of 2038, but the next GPS WNRO happens in Novermber of that same year. So some systems, if you hiccup the epoch past that, may immediately suffer Y2038 problems.
- terinjokes 2y agoInteresting, thanks for the links, I'll give them a read. Since with the GPS 95 at worse I can pull the battery cell and clear the memory, I should try to see if it's Y2038 compatible (I'm guessing not).